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beam diameter [′bēm dī‚am·əd·ər]

(optics)

The distance between points on opposite sides of a light beam at which the power per unit area drops to 1/e(0.37) times its maximum value.

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No references found	Floodlighting RLLD commercial exterior floodlights feature superior beam adjustment controls that can precisely control beam diameter and directional placement. Commercial Exterior Lighting Fixtures and Design Services by Kimberly Quang / Business community Power mode" is when the beam diameter is less than the defining aperture of the TSI instrument (or NIST irradiance standard); "irradiance mode" is when the input beam diameter is greater than the diameter of the defining aperture. Sources of differences in on-orbital total solar irradiance ... by Butler, J.J.; Johnson, B.C.; Rice, J.P.; Shirley, E.L.; Barnes R.A. / Journal of Research of the National Institute of Standards and Technology Even influence of the finite excitation beam diameter may require a spatial description of the heat propagation. Correlation between hardening depth and thermal parameters based on ... by Kruse, Dennis; Prekel, Helmut; Goch, Gert; Walther, Heinz G. / Proceedings of the Estonian Academy of Sciences: Engineering	Beall Woods State Park Beam beam anchor beam angle beam antenna beam approach beacon system beam attack beam attenuator beam bearing plate beam blocking beam bolster beam bottom beam box beam bracketing beam brick beam bridge beam building beam casing beam ceiling beam clip beam column beam compass beam coupling beam current beam cutoff angle beam diameter beam divergence beam drop beam edge beam efficiency beam encasement beam expander beam extractor beam fill beam filling beam form beam hanger beam holding beam hole beam infilling beam iron beam lead beam link beam lobe switching beam magnet beam parametric amplifier beam pattern beam pocket beam power tube beam pumping unit beam recording	beam bottom beam box beam box beam bracketing Beam Break Up beam brick Beam Bridge Beam bridges beam building beam casing beam ceiling Beam center Beam Change Trigger beam clamp beam clamp beam clamp beam clamp beam clip beam collimation Beam column Beam compass Beam compass beam compasses beam compasses Beam Congruency System Beam Correction Factor beam coupling beam current Beam Current Monitor beam cutoff angle beam diameter Beam divergence beam down beam down beam down beam down beam drop beam edge beam efficiency Beam emittance beam encasement Beam engine beam engines Beam Equivalent Pressure beam expander Beam Experiment Aboard Rocket beam extractor beam fill beam filling beam form Beam Former beam forming Beam Forming Electrode Beam Frequency Network Beam Gas Path Length Beam Global Wine & Spirits beam hanger beam hardening

Floodlighting RLLD commercial exterior floodlights feature superior beam adjustment controls that can precisely control beam diameter and directional placement.

Commercial Exterior Lighting Fixtures and Design Services by Kimberly Quang / Business community

Power mode" is when the beam diameter is less than the defining aperture of the TSI instrument (or NIST irradiance standard); "irradiance mode" is when the input beam diameter is greater than the diameter of the defining aperture.

Sources of differences in on-orbital total solar irradiance ... by Butler, J.J.; Johnson, B.C.; Rice, J.P.; Shirley, E.L.; Barnes R.A. / Journal of Research of the National Institute of Standards and Technology

Even influence of the finite excitation beam diameter may require a spatial description of the heat propagation.

Correlation between hardening depth and thermal parameters based on ... by Kruse, Dennis; Prekel, Helmut; Goch, Gert; Walther, Heinz G. / Proceedings of the Estonian Academy of Sciences: Engineering

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